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PG/VG base liquids are the foundation of DIY vape juice, allowing adult users in Ireland to control viscosity, vapour production and overall device compatibility. By selecting the correct ratio of propylene glycol (PG) and vegetable glycerine (VG), users can tailor their e-liquid for pod systems, MTL kits or sub-ohm devices.

Unlike finished e-liquids, base liquids contain no flavour. Their role is purely technical — to define how the liquid behaves inside the device. Correct ratio selection is essential for proper wicking, coil stability and consistent performance.

Bases

Eirhorse Cooling Agent

Availability:: large

Shipment date:: dispatch the same working day for orders placed by 3pm

Price::

€9.99

UNIT

Eirhorse Fruit Elixir

Availability:: large

Shipment date:: dispatch the same working day for orders placed by 3pm

Price::

€9.99

UNIT

Eirhorse Nicotine Shot 18mg

Availability:: out of stock

Price::

€11.00

Eirhorse PG/VG Base 100ml

Availability:: large

Shipment date:: dispatch the same working day for orders placed by 3pm

Price::

€29.99

Eirhorse Pharmaceutical Plant Glycerin 100ml 99.5%

Availability:: large

Shipment date:: dispatch the same working day for orders placed by 3pm

Price::

€29.90

UNIT

Eirhorse Super Pure Propylene Glycol (PG) 100ml

Availability:: running out

Shipment date:: dispatch the same working day for orders placed by 3pm

Price::

€29.90

UNIT

Eirhorse Sweetener

Availability:: large

Shipment date:: dispatch the same working day for orders placed by 3pm

Price::

€9.99

UNIT

PG/VG Base Liquids – Viscosity Control, Wicking Behaviour and Device Matching in Ireland

Key Takeaways:

PG/VG ratio determines how a DIY e-liquid behaves in a device.
PG improves wicking speed and throat hit, while VG increases vapour density.
50/50 is the most versatile option for pod systems.
Higher VG ratios require compatible coils and higher power devices.

Definition: PG/VG base liquids are unflavoured carriers used in DIY vape juice to control viscosity, vapour production and compatibility with refillable vape devices.

In DIY mixing, base liquid is not just a filler — it is the main performance driver. The ratio between PG and VG directly affects how the liquid flows through the coil, how it vaporises and how stable it remains during use. For adult users in Ireland, selecting the correct base is one of the most important steps in building a reliable DIY setup.

Understanding PG vs VG Behaviour

PG (Propylene Glycol): thinner liquid, faster wicking, stronger throat sensation
VG (Vegetable Glycerine): thicker liquid, smoother inhale, higher vapour production

Balancing these two components is essential. Too much PG can make a liquid too thin for some setups, while too much VG can slow wicking and lead to dry hits in smaller devices.

Technical Specification Matrix – Base Ratio Guide

Base Type	VG/PG Ratio	Best Devices	Coil Range	Behaviour
Balanced Base	50% VG / 50% PG	Pods / MTL	0.8Ω – 1.2Ω	Stable wicking, balanced vapour and flavour
High PG Base	30% VG / 70% PG	MTL Devices	1.0Ω – 1.8Ω	Fast wicking, stronger throat hit
High VG Base	70% VG / 30% PG	Sub-ohm Devices	0.15Ω – 0.6Ω	Thicker liquid, higher vapour output

How Base Ratio Affects Device Performance

The wrong base ratio is one of the most common causes of poor performance in DIY setups. A liquid that is too thick may not wick fast enough, while a liquid that is too thin may cause leaking or reduced vapour density. Matching the base to the device ensures stable saturation, consistent vapour production and longer coil usability.

Temperature and Climate Considerations (Ireland)

In cooler Irish conditions, higher VG liquids become even thicker. This can slow down wicking in pod systems or MTL tanks. For that reason, many users prefer balanced or slightly higher-PG mixes for everyday use, especially during colder months.

Price & Value Context – Ireland (2026)

With e-liquid taxation affecting overall costs in Ireland, base liquids play a key role in controlling long-term expenses. Buying base separately allows users to produce larger volumes of DIY liquid at a lower cost per millilitre compared to pre-made products.